5.4.2.16 IfcOpeningElementTypeEnum
5.4.2.16.1 Semantic definition
This enumeration defines the basic types for opening elements.
5.4.2.16.2 Type values
| Type | Description |
|---|---|
OPENING
|
An opening as subtraction feature that cuts through the element it voids. It thereby creates a hole. An opening in addition has a particular meaning for either providing a void for doors or windows, or an opening to permit flow of air and passing of light. |
RECESS
|
An opening as subtraction feature that does not cut through the element it voids. It creates a niche or similar voiding pattern. |
USERDEFINED
|
User-defined opening element. |
NOTDEFINED
|
Undefined opening element. |
5.4.2.16.3 Formal representation
TYPE IfcOpeningElementTypeEnum = ENUMERATION OF
(OPENING
,RECESS
,USERDEFINED
,NOTDEFINED);
END_TYPE;